[  552.794271] netdevsim netdevsim609 eni609np1: renamed from eth1
[  552.891562] netdevsim netdevsim411 eni411np1: renamed from eth0
[  553.108144] Could not find device with ifindex 2000 in netnsfd 11
[  553.108344] Could not find netns with fd: 2000
[  553.108455] Cannot link a netdevsim to itself
[  553.108589] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).